Knob.



No. 736,290. PATBNTED AUG. 11, 1903..

c. o. NoAcK. KNUB. APPLIUATION TILD PEB. 24.l 1903. No MODEL. l

2 if E '1- WVM/1% UNITED STATESY Patented August i 1 1, 421.903

ATENT union."

CARL OTTO NOACK, OF STAMFORD, CONNECTICUT, ASSIGNOR, BY MESNEASSIGNMENTS, yTO `NEW YORK LOCK COMPANY, OF NEW YORK, N. Y.,

A CORPORATION`OF NEW YORK.

KNOB.

SPECIFICATION forming part of Letters Patent o. 736,290, dated August11, 1903. Application tiled February 24,1903` Serial No. 144.691. (Nomodel.)

.To all whomv it may concern:

Be it known that I, CARL OTTO Noack, a citizen of the United States,residing in Stamford, in the county of Fairfield and State ofConnecticut, have invented certain new and useful Improvements in Knobs,of which the following is a specification.

'This invention relates to improvements in knobs provided withdetachable spindles, such asqare commonly employed; and the ob` ject ofthe invention is toprovide a simple and effective means for connectingthe knob portion proper with the spindle.

For this purpose the invention consists of a knob adapted to receive asuitable spindle," a movable locking-plate adapted to engage thespindle, and a rotary sleeve connected with said locking-plate andadapted to positively move the same into and out of spindleengagingposition.

The invention consists, further, of certain details of construction andcombinations of parts, which will be fully described hereinafter andtinallypointed out in the claims.`

In the accompanying drawings,Figures l and 2 are side elevations of aknob and spindle provided with my improved means of at tac'hment. Fig. 3is a section of the new knob, showing a spindle inserted in the same.Fig. 4 is a detailsection ofthe knob-shank', showing thelparts `inposition for releasing the spindle from theknob; and Figs. 5 and 6 arevertical transverse sections on lines 5 5 and 6 6, Fig. 3. y l

Similar letters of reference indicate corresponding parts.

Referring to the drawings, A indicates the spindle of a door-knob, whichis made of the usual.` size and of square cross-section, but which isnot necessarily provided with the usual screw-holes commonly located inthe end ofthe spindle. To the end of the spindle A is applied theknob-shank B. Said shank is provided with a longitudinalopening b forreceiving the spindle, said opening being made of similar cross-sectionto the spindle. The shank is provided at its inner or larger end with anenlarged portion b', which is screwed into a bushing a at an innercentral portion of the knob-head C, as shown in Fig.

Vproximately square cross-section.

l.ity within the same.

3. It is obvious that in place of using .a head having a centralscrew-threaded bushing a head made in two sections may be employed, asshown in Fig. 2, one section, c, being made 'integral with theknob-shank B, while the other, the front portion, C', is sprung over theedge of the rear section, or any other suitable head of glass or othersuitable material may be used. The enlarged portion b' of the shank B isprovided with an interior cavity b2 of ap- An opening b3 is arranged inthe enlarged portion B' of the shank and commnnicateswith the cav- Atthe larger side of the opening b3 is located in the cavity aretaining-sleeve D,which serves, by reason of its square cross-section,as an additional means of security against torsional movement betweenthe spindle and knob and as a means `of support at the inner portion ofthe spindle.

Said opening b3 and inner portion of the cavity b2 form a recess adaptedto receive the locking-plate E, which is provided with a square openingadapted to register with the opening in the knob-shank B andretaining-sleeve D. The lower end of the locking-plateE is securedagainst movement longitudinally of the knob by being located in asuitable recess d of the shank formed between the inwardly-projectingshoulders or lugs d at the interior of the cavity and the forward wallof the cavity, which latter is formed by the more contracted portion ofthe shank. The locking-plate is provided with an outwardly-projectingear c, which extends beyond the surface of the enlarged portion b of theshank.

F indicates an exterior locking-sleeve which is adapted to fit upon theshank at the enlarged portion of the same, so as to engage theprojecting portion of the locking-plate.

The sleeve F is provided with an internaly The sleeve'F is capable of asliding motion ICO forced in the oppositedirection into the po-l sitionshown in Fig. 3, whereby the inner edges e2 of the locking-plate at theopening through the same bite the spindle A, holding thereby theknob-shank and knob firmly secured thereto. A locking-screw g isarranged in the sleeve F and extends through the same into engagementwith the shank of the knob, so as to secure the sleeve in the positionto which it is set. When it is desired to release the knob from thespindle, the locking-sleeve F is rotated in opposite direction, therebyremoving the pressure from the locking-plate and permitting the same tostand perpendicular, or approximately so, to the sleeve, as in Fig. 4,so that the edges e2 of the plate do not bite the spindle. The spindleis thereby released and may be withdrawn from the shank of the knob.

Engagement of the locking-plate with the spindle may be obtained bymoving the sleeve Without rotation outwardly upon the shank from theposition shown in Fig. f when setting the knob. The sleeve is thenscrewed back until it arrives at the abutment e. The sleeve F isconnected positively by its thread f with the plate E and is adapted topositively move the same into and out of spindle-engaging position. Bymeans of the screw g the sleeve F may be locked in any desired positionupon the knobi. e., so as to retain the locking-plate in engagement withthe spindle, as in Fig. 3, orso as to retain said `plate out ofengagement with said spindle,

' stantially as set forth.

2. A knob adapted to receive a spindle, a locking-plate adapted toengage said spindle, plate-shifting means capable of a sliding and of anindependent rotary motion, and means for locking said plate-shiftingmeans, substantially as set forth.

3. 'A knob adapted to receive a spindle, a locking-plate adapted toengage said spindle, and a plate-shifting sleeve positively connectedwith said locking-plate,-substantially as set forth.

4. A knob adapted to receive a spindle, a locking-plate adapted toengage said spindle, plate-shifting means loosely movable longitudinallyof s aid knob, and means for locking said plate-,shifting means,substantially as set forth.

5. A knob adapted to receive aspindle, a locking-plate adapted to engagesaid spindle, movable plate-shifting means, and means for locking saidplate-shifting means, substantially as set forth.

6. A knob adapted to receive a spindle, a movable locking-plate adaptedto engage said spindle, and plate-shifting means movable with and in thesame direction as said plate and positively connected therewith againstindependent movement in said direction, substantially as set forth.

7. A knob adapted to receive a spindle, a movable locking-plate adaptedto engage said spindle, and plate-shifting means movable with and in thesame direction as said plate, positively connected therewith againstindependent movement in said direction, and movable transverselythereto, substantially as set forth.

8. A knob adapted to receive a spindle, a movable locking-plate adaptedto engage said spindle, and a rotary sleeve provided with a transversescrew-thread engaging said locking-plate, substantially as set forth.

9. A knob adapted to receive a spindle, a movable locking-plate adaptedto engage the spindle, a rotary sleeve connected with said locking-plateand adapted to move the same into and out of spindle-engaging position,and means for locking said sleeve, substantially as set forth.

10. Aknob adapted to receive a spindle, a movable locking-plate adaptedto engage the spindle, a rotary loosely-movable sleeve pro# vided with atransverse screw-thread engaging said locking-plate and adapted topositively move the same into and out of spindleengaging position, andan abutment for said sleeve, substantially as set forth.

In testimony that I claim the foregoing as my invention I have signed myname in presence of two subscribing witnesses.

CARL OTTO NOACK.

Witnesses:

HENRY J SUHRBIER, JOSEPH H. NILEs.

ICO

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